class A:
    aa = 1

    def __init__(self, x, y):
        self.x = x
        self.y = y


if __name__ == '__main__':
    a = A(2, 3)
    A.aa = 22
    a.aa = 111
    print(a.x, a.y, a.aa)
    print(A.aa)
    print(a.aa )